Answer by
kacey912 (34)
Urinary tract infections (more common in woman), kidney infections, bladder or kidney stones, enlarged prostate (only in men), kidney disease, advanced kidney, bladder, or prostate cancer, inherited disorders such as sickle cell anemia or Alport syndrome, kidney injury from sports or a blow to the kidneys, certain medications including aspirin, penicillin, heparin, or cytoxen, or strenuous exercise